All About Circuits

Latest Test & Measurement Education

Categories

Basic Ohmmeter Use

Basic Ohmmeter Use

Explain how an ohmmeter is able to measure the resistance of a…


Worksheets - Test & Measurement

Component Failure Analysis (Continued)

Component Failure Analysis (Continued)

“I consider that I understand an equation when I can predict the…


Textbook

DC Metrology

DC Metrology

Define the following metrological terms: • Uncertainty • Accuracy…


Worksheets - Test & Measurement

AC Waveforms

AC Waveforms

When an alternator produces AC voltage, the voltage switches polarity…


Textbook

Bipolar Junction Transistors as Switches

Bipolar Junction Transistors as Switches

Solid-state switching circuits usually keep their constituent…


Worksheets - Test & Measurement

Si Lab - A Simple BJT Current Mirror Circuit

Si Lab - A Simple BJT Current Mirror Circuit

In this hands-on semiconductor electronics experiment, build a simple current mirror using matched bipolar junction transistors (BJTs) and learn about current mirror circuit limitations, the temperature dependence of BJTs, and thermal runaway.


Textbook

Autotransformers

Autotransformers

How much voltage is there between the following pairs of points in…


Worksheets - Test & Measurement

DC Motor Theory

DC Motor Theory

If the ends of a wire loop are attached to two half-circular metal…


Worksheets - Test & Measurement

Differential Transistor Amplifiers

Differential Transistor Amplifiers

Don’t just sit there! Build something!! Learning to mathematically…


Worksheets - Test & Measurement

Analysis Techniques for Series Parallel Resistor Circuits

Analysis Techniques for Series Parallel Resistor Circuits

Guidelines to Series-Parallel Combination Circuit Analysis The goal of…


Textbook

Servo Motor Systems

Servo Motor Systems

Explain the operation of this “H-bridge” motor control circuit: At…


Worksheets - Test & Measurement

Intro Lab - Resistor Power Dissipation

Intro Lab - Resistor Power Dissipation

In this hands-on electronics experiment, you will examine the heat generated by resistors and maybe even make one smoke! Also, learn to calculate power dissipation using Joule's law and resistor power ratings.


Textbook

Active Loads in Amplifier Circuits

Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…


Worksheets - Test & Measurement

AC Metrology

AC Metrology

In power distribution systems, it is very important to be able to…


Worksheets - Test & Measurement

Special-purpose Batteries

Special-purpose Batteries

Mercury Standard Cell Back in the early days of electrical measurement…


Textbook

Solving Unbalanced Wheatstone Bridge Circuits Via Mesh Current Method

Solving Unbalanced Wheatstone Bridge Circuits Via Mesh Current Method

An unbalanced Wheatstone bridge cannot be solved using simple series…


Textbook

Bipolar Transistor Biasing Circuits

Bipolar Transistor Biasing Circuits

Don’t just sit there! Build something!! Learning to mathematically…


Worksheets - Test & Measurement

AC Lab - Musical Keyboard as a Signal Generator

AC Lab - Musical Keyboard as a Signal Generator

In this hands-on AC electronics experiment, an electronic musical keyboard will be used as a variable-frequency AC signal generator to learn the difference between AC amplitude and frequency.


Textbook

Practical Power Factor Correction

Practical Power Factor Correction

When the need arises to correct for poor power factor in an AC power…


Textbook

Resistors

Resistors

Shown here is the schematic symbol for a resistor: What is the purpose…


Worksheets - Test & Measurement

Rectifier Circuits

Rectifier Circuits

What is Rectification? Now we come to the most popular application of…


Textbook

Capacitance Calculator

Capacitance Calculator

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.


Tools

Pi Attenuator Calculator

Pi Attenuator Calculator

This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.


Tools

DC Lab - Rate-of-change Indicator

DC Lab - Rate-of-change Indicator

In this hands-on electronics experiment, you will build an analog differentiator circuit that outputs a signal proportional to the rate-of-change and learn about one of the advantages of analog circuits.


Textbook

Microstrip Crosstalk Calculator

Microstrip Crosstalk Calculator

This tool is designed to calculate cross-talk coefficient and coupled voltage for a microstrip.


Tools

Stepper Motors

Stepper Motors

Don’t just sit there! Build something!! Learning to analyze digital…


Worksheets - Test & Measurement

Digital Codes

Digital Codes

Counting practice: count from zero to thirty-one in binary, octal, and…


Worksheets - Test & Measurement

AC Lab - Large Induction Motor

AC Lab - Large Induction Motor

In this hands-on AC electronics experiment, build a large AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.


Textbook

Switch Contact Design

Switch Contact Design

A switch can be constructed with any mechanism bringing two conductors…


Textbook

Elementary Circuits

Elementary Circuits

In the simplest terms you can think of, define what an electrical…


Worksheets - Test & Measurement

Mixed-Frequency Signals

Mixed-Frequency Signals

What is a harmonic frequency? If an oscillator circuit outputs a…


Worksheets - Test & Measurement

Overcurrent Protection

Overcurrent Protection

What hazards might be posed by a circuit with excessive current going…


Worksheets - Test & Measurement

Negative Feedback OpAmp Circuits

Negative Feedback OpAmp Circuits

Don’t just sit there! Build something!! Learning to mathematically…


Worksheets - Test & Measurement

Summer and Subtractor OpAmp Circuits

Summer and Subtractor OpAmp Circuits

Don’t just sit there! Build something!! Learning to mathematically…


Worksheets - Test & Measurement

Factors Affecting Capacitance

Factors Affecting Capacitance

There are three basic factors of capacitor construction determining…


Textbook

Electrical Transients

Electrical Transients

This chapter explores the response of capacitors and inductors to…


Textbook

Contributors (13)

Contributors (13)

Contributors to this chapter are listed in chronological order of…


Textbook

Power Density Calculator

Power Density Calculator

A tool designed to calculate the power density of an antenna


Tools

Gate Universality

Gate Universality

NAND and NOR gates possess a special property: they are universal.…


Textbook

Performance-Based Assessments for Basic Electricity Competencies

Performance-Based Assessments for Basic Electricity Competencies

(Template)


Worksheets - Test & Measurement

AC Metrology

AC Metrology

In power distribution systems, it is very important to be able to…


Worksheets - Test & Measurement

Peak Voltage Calculator

Peak Voltage Calculator

The peak voltage calculator calculates peak voltage values from the peak-to-peak voltage, RMS voltage, or average voltage.


Tools

Harmonic Phase Sequences

Harmonic Phase Sequences

In the last section, we saw how the 3rd harmonic and all of its…


Textbook

AC Instrumentation Transducers

AC Instrumentation Transducers

Just as devices have been made to measure certain physical quantities…


Textbook

Contributors (7)

Contributors (7)

Contributors to this chapter are listed in chronological order of…


Textbook

The Command-line Interface

The Command-line Interface

If you’ve used DOS or UNIX operating systems before in a…


Textbook

Vol III. Credits

Vol III. Credits

All entries arranged in alphabetical order of surname. Major…


Textbook

Karnaugh Maps, Truth Tables, and Boolean Expressions

Karnaugh Maps, Truth Tables, and Boolean Expressions

Who Developed the Karnaugh Map? Maurice Karnaugh, a…


Textbook

DC Lab - Current Divider

DC Lab - Current Divider

In this hands-on electronics experiment, you will build resistive current dividers and observe how Ohm's law and Kirchhoff's current law function in real circuits using a voltmeter and an ammeter.


Textbook

Beam Power Tubes

Beam Power Tubes

In the beam power tube, the basic four-element structure of the…


Textbook

Node Voltage Method

Node Voltage Method

The node voltage method of DC network analysis solves for unknown…


Textbook

LC Tank Circuit Resonance Calculator

LC Tank Circuit Resonance Calculator

This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.


Tools

Thyristor Application Circuits

Thyristor Application Circuits

Don’t just sit there! Build something!! Learning to mathematically…


Worksheets - Test & Measurement

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…


Textbook

Practical Considerations - Capacitors

Practical Considerations - Capacitors

Capacitors, like all electrical components, have limitations that must…


Textbook

Si Lab - BJT Common-emitter Amplifier

Si Lab - BJT Common-emitter Amplifier

In this hands-on semiconductor electronics experiment, construct a common-emitter amplifier using a bipolar junction transistor (BJT) and learn about amplifier gain and feedback.


Textbook

Performance-Based Assessments for Basic Electricity Competencies

Performance-Based Assessments for Basic Electricity Competencies

(Template)


Worksheets - Test & Measurement

CMOS Logic Gates

CMOS Logic Gates

Counting practice: count from zero to thirty-one in binary, octal, and…


Worksheets - Test & Measurement

Specific Troubleshooting Techniques

Specific Troubleshooting Techniques

After applying some of the general troubleshooting tips to narrow the…


Textbook

Voltmeter Design

Voltmeter Design

As was stated earlier, most meter movements are sensitive devices.…


Textbook